"Force reloading" images

My app needs to download images generated on a server. I have a REFRESH function that nukes all my locally cached files and re-downloads them from the server.

Problem is that they are still getting cached somewhere. When I pull up the image with my browser the same problem occurs until I force reload.

How can I make Corona force reload (refresh) images from a server?

You could use an old cache busting technique where you put a HTTP GET parameter at the end of the URL that has a random number or incrementing number on it to make each URL unique like:

http://someserver.com/someimage.png?q=123

You could use an old cache busting technique where you put a HTTP GET parameter at the end of the URL that has a random number or incrementing number on it to make each URL unique like:

http://someserver.com/someimage.png?q=123